Lock for automobile doors



.1. DRzl-:wlEc'Kl 2,474,519

Loox FOR AUTOMOBILE Doons June 28, 1949.

' v 9 JNVENToR. i Joseph Drzew/'eck By' June 28, 1949.

J. DRZEWIECKI Filed June 1, 1946 LOCK FOR AUTOMOBILE DOORSv 2sheets-sheet 2v '-L 'L' INVENToR. -Joseph Drzew/'ecki ATTORNEY PatentedJune 28, 1949 inventipn isitoH provide lock-for automobile;^ doors, thelock-being-fcharac- Lterized by its-simplicity-and yabsence ef prominent-prcrjections-on'v thegsur-iacejofrthedoor outsideor recognized as ainside 'The latterffact"willbe desirable safety factor;

objeetisf to'v lprovide #ai lock which may be easily Linstalledor`eas1ly repaired without-the need A'of removing any,covering, walls,or-*surfaces of-"the door.

' I shallmow describeniyj lock with Vreference f to the`acconfipanyingjdrawings; inwhi-ch:

Fig.- 1 is-` a -plansectionalfview s of the free --end of ahingedautornebil'e'doors with said-viewvincludingfalsoarr adjacautomobilebody;

my lock therein, y entpillar of the Fig. \2 is a iside elevation of*thesame part -of n"the doorgandy the same spart' "or body whichisfshown imFig. 11';

'the Iau'tonrlobile vits 4lockeda posi- Fig. 4is a sectional v iew ofthe latch in-its disengaged position;

Fig. 5 is a sectional .View .on.line 55 of Fig. 1;'3

Fig. 6 is a sectionalviewon'line" 6-6 of Fig. 5;

Fig. 9 is. ya sectional lviewonlin Fig. 10 is a perspective view ofand-asleeve, being a part'coffmy a tumbler drum lock 1 :Fig '1 1 isr areversedeperspectivwview f'ofithefelementsv shown .in Fig.. l0..

:Similar numerals :freier throughout the several views.

The two basic elements of my I0 and a keeper or of sheet metal, in theshape of to@ similar. parts lock are a latch socket II. The latch ismade a hollow wedge projecting laterally from a mounting plate I2,

retained in place by screws I3 of an automobile.

on a The socket disposed in pillar door jamb I4, which is a stationarypart of the automobile body, is shaped correspondingly to accommodatesaid latch and includes an inner posed sharply upwardly from which thelatch is adapted to shoulder I 5 dispassage IB, into enter. The latchitself includes a movable member I1 pivoted by means of a cross-pin itsbody, said member projecting the upper surface the latch. A wire spring2I colle I9 of the shank I8 within the tip portion of normally aboveportion of d around pin I8 When the latch enters passage I6 of socketII,

member I1 is ,depressed fspringf 2| L,

berl drum 23d-isposed of drumf23 it contains a l pin'-'2&'I,'-,seteccentrically in -projects therefrom' into said notch so that a=rotation'oftthedrumwill result in therotationof v"the against theA tension-of y but-oncethe latch has vfully entered said-socket; said movablemember Arises-v to its -normal@ position toabut from inside againstfshoulder' I 5,*as shown in -Fi'g.-3. 'This is theinter- Avio'kedposition of; thev'twobasicunits ofA my'flqck, :that is,^thelatchandthesocket.

Ishallnow 'describe the means designedtodisengage the latch. vTheseinclude aftumbler mechanism' of theconventional .type includinga't'umvwitl'iin a cylinder 24. This isafxed to the-door of theautomobile cross-wise,

raccording toA `the accepted; practice. Extending axially-'fromgtheedrumisa stem 25. Fitting over said stem isV alsleeve 2I-terminating^on theinside wall of theautomobjiledoorwith a handlef21. int

*its 4,inner fend-,where'the sleeve abuts the 'enjd broad notch28,Afshort the endof thedrum,

@n its other side, `dia-- rthe notch, thegsleeve is off -inaiplane atright sleeve,` and vice versa.

ijjlfivotallyA mo ted above the` axis of sleevef26 on aY shaft 3 I 1disposedparallell theretor asv Ashown while the lower end-f34;abutsfthe; ground off surface 30;'thereof.

The latch described y above is equipped with a Short'boltf; projectinglaterally therefrominwardly into the body of the Ndoor beyondmthemounting plate I2 on the jamb of the door, said bolt being adapted to beengaged by other elements of my lock. One of these elements may beoperated by handle 3l. The handle, which diners from handles ordinarilyused for automobiles, being made in the form of a horizontal bar, ismounted on a lever 38 fulcrumed at 39 and including an arm 40. The armis adapted to engage said bolt 36 so that by means of the handle, thatis, by swinging the handle upwardly to position 31a, the bolt will bedepressed7 resulting in the depression of the interlocking member I1 ofthe latch, allowing the latch to be withdrawn from socket II. It will beseen, however, that the end of arm projects far enough to extend overthe indented rest 33 on dog 32. When said rest is right below arm 40, itcannot be depressed and the door remains locked.

This is where the function of the sleeve 26 comes in. Normally, its natsurface 30 is in contact with the lower end 34 of dog 32. Arm 40 ntsover the rest 33 and the latch remains in its interlocked position, asshown in Fig. 3. When, however, the sleeve is turned around its axis bymeans of tumbler drum 24, which is operated by a key 22, so that theround surface of the sleeve bears against said dog. The cam eiect of theturn causes the upper part of the dog to slide from under the arm 40allowing bolt 36 to be depressed by means of handle 31.

From inside handle 21, being a part of the sleeve, serves the samepurpose of imparting a rotary motion to the sleeve as above described,

with respect to the function of handle 31 and parts actuated thereby.

In addition to the above structure, I have provided additional controlsof my latch, making it possible to operate my lock from inside theautomobile. One of these controls actuated by handle 21 has already beendescribed. The other control includes a vertically disposed plate 4|,disposed flush with the inside surface of the door. The plate is affixedto a shaft 42, which at one end is journalled in a bearing 43, while theopposite end is journalled in the jamb of the door at 44. A finger 45projects radially from the shaft, extending over bolt 36. When the upperpart of plate 4|, above the level of shaft 42, is pushed inwardly, saidfinger 45 will depress bolt 36 in latch I allowing the door to beopened.

Said plate 4| may also be used as a means of locking the latch againstwithdrawal from socket This is accomplished as follows: Sleeve 26 is4provided with a radial spoke 46, which is disposed on the flat side 30of said sleeve. The spoke is loosely connected with an upright slidingbar .41, having a slot 48 for transverse passage of shaft 3|, supportingdog 32. In its upper portion the bar has a recess 49, the limits of therecess at the top and bottom being defined by horizontal shoulders 50and 5| respectively. The nger 45 traverses said recess and is adapted tobe engaged by said shoulders alternately.

Assuming that the lock is open, the dog 32 being Fig. 6, and that it isdesired to lock the door, this may be done by pushing inwardly the lowerportion of plate 4|. This Will cause finger 45 to shift upwardly, whichwill lift bar 41 to a position 41a shown in dotted lines. As the lowerpart of the bar is connected to sleeve 26, this will cause the sleeve toturn around its axis so that its flat side is in contact with dog 32.This, as already explained, will prevent depression of bolt 36 leavinglatch |0 in its locked position within socket I It will be obvious thatsome changes may be made in the structure of my lock and the combinationof its parts without deviating from the inventive principle disclosedherein, what I therefore wish to claim is as follows:

1. A lock for automobiles as described comprising a socket in the bodyof the automobile, and elements in the door including a latch adapted toenter the socket and having a depressible member for interlocking withparts within the socket, a lateral bolt on said depressible member, ahandle on the outer side of the door, a piVoted arm extending therefromand adapted to depress the bolt, a spring-actuated dog comprising avertically disposed, elongated member, pivoted midway its length andhaving at its upper end a shoulder normally projecting under the armextending from the handle to prevent the arm from being depressed, akey-operated cam bearing against the lower end of the dog to impart toit a partly rotary motion upon its pivot to withdraw the upper part ofsaid dog from under the arm extending from the handle, to permitdepression by means of said arm of the bolt on said depressible memberof the latch within the socket to disengage the latch therefrom.

2. A lock for a door of an automobile including a socket in its bodyadjoining the jamb of the door, and elements in the door, including alatch having a pivoted depressible member for interlocking with recessedparts in the socket, a lateral bolt on said depressible member, a handleon the outer side of the door, the handle being mounted on a pivoted armextending transversely over the bolt for engagement therewith, a pivoteddog normally in the way of the arm to prevent it from being presseddownwardly upon the bolt, a rotary key-operated tumbler mechanism in thedoor, and a cam sleeve axially extending therefrom and adapted to berotated by said tumbler mechanism, said sleeve bearing against the dogto move it out of the Way of the handle-operated arm.

JOSEPH DRZEWIECKI.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 2,143,965 Van Voorhees Jan.17,1939 2,286,992 Murphy June 16, 1942 2,329,232 Van Voorhees Sept. 14,1943

